The dataset is made up of eleven networks, one corresponding to each city (Madrid, Barcelona, Valladolid, Burgos, Salamanca, León, Palencia, Zamora, Ávila, Segovia and Soria). The nodes represent retail stores listed in the Yellow Pages. Each node contains the category code to which they are classified according to 68 codes of The North American Industry Classification System for small businesses (NAICS). There is a link between both nodes if the stores are within a linear distance of 100 meters.
